Zip code cap



FIG. 1 shows a front view of my design for a zip code cap according to the invention;

FIG. 2 shows an enlarged rear view thereof, with the strap loosened;

FIG. 3 shows a right side view thereof;

FIG. 4 shows a left side view thereof, with the strap tightened; and,

FIG. 5 shows a top view thereof.

The bottom of the cap forms no part of the claimed invention. 

The ornamental design for a zip code cap, as shown and described. 